ACK/cmnt: [Zesty][PATCH 00/13] POWER9 XIVE: msgsnd/doorbell IPI support

[Stefan Bader]

On 22.05.2017 16:50, Gustavo Walbon wrote:
> Buglink : http://bugs.launchpad.net/bugs/1691973
> 
> The backport was requested for 16.04.3 HWE to be enabled the XIVE 
> feature on the POWER9 systems.
> 
> The tests were done using the Sysbench for CPU,fileIO and Threads tests, 
> and the FIO tester to write directly on disk without buffering. All
>  tests were performed in order to stress the machine using its 32 
> threads of CPUs for 12 hr.
> 
> The commits below were cherry-pick to enable XIVE features.
> 
> The fixing from Michael Ellerman which it solved the kernel 
> crash while the starting boot of the machine.

Isolated to the ppc architecture as stated and tested there. Note for
application to zesty tree: the bug reference still has to be added to the
individual patches.

-Stefan

> 
> Benjamin Herrenschmidt (5):
>   powerpc/xive: Native exploitation of the XIVE interrupt controller
>   powerpc/powernv: Add XIVE related definitions to opal-api.h
>   powerpc: Add more PPC bit conversion macros
>   powerpc: Add optional smp_ops->prepare_cpu SMP callback
>   powerpc/smp: Remove migrate_irq() custom implementation
> 
> Douglas Miller (1):
>   powerpc/xmon: Dump memory in CPU endian format
> 
> Michael Ellerman (1):
>   powerpc/powernv: Fix oops on P9 DD1 in cause_ipi()
> 
> Nicholas Piggin (6):
>   powerpc/64s: Add msgp facility unavailable log string
>   powerpc/64s: Add SCV FSCR bit for ISA v3.0
>   powerpc: Change the doorbell IPI calling convention
>   powerpc: Introduce msgsnd/doorbell barrier primitives
>   powerpc/64s: Avoid a branch for ppc_msgsnd
>   powerpc/powernv: POWER9 support for msgsnd/doorbell IPI
> 
>  arch/powerpc/include/asm/bitops.h              |    8 +
>  arch/powerpc/include/asm/dbell.h               |   40 +-
>  arch/powerpc/include/asm/opal-api.h            |   74 +-
>  arch/powerpc/include/asm/opal.h                |   36 +
>  arch/powerpc/include/asm/ppc-opcode.h          |    2 +
>  arch/powerpc/include/asm/reg.h                 |    2 +
>  arch/powerpc/include/asm/smp.h                 |    6 +-
>  arch/powerpc/include/asm/xics.h                |    2 +-
>  arch/powerpc/include/asm/xive-regs.h           |   97 ++
>  arch/powerpc/include/asm/xive.h                |  163 +++
>  arch/powerpc/include/asm/xmon.h                |    2 +
>  arch/powerpc/kernel/dbell.c                    |   58 +-
>  arch/powerpc/kernel/irq.c                      |   40 -
>  arch/powerpc/kernel/smp.c                      |   46 +-
>  arch/powerpc/kernel/traps.c                    |    2 +
>  arch/powerpc/kvm/book3s_hv_builtin.c           |    8 +
>  arch/powerpc/platforms/85xx/smp.c              |   11 +-
>  arch/powerpc/platforms/Kconfig.cputype         |    1 +
>  arch/powerpc/platforms/powermac/smp.c          |    2 +-
>  arch/powerpc/platforms/powernv/Kconfig         |    1 +
>  arch/powerpc/platforms/powernv/opal-wrappers.S |   15 +
>  arch/powerpc/platforms/powernv/setup.c         |   15 +-
>  arch/powerpc/platforms/powernv/smp.c           |   88 +-
>  arch/powerpc/platforms/pseries/smp.c           |   27 +-
>  arch/powerpc/sysdev/Kconfig                    |    1 +
>  arch/powerpc/sysdev/Makefile                   |    1 +
>  arch/powerpc/sysdev/xics/icp-hv.c              |    2 +-
>  arch/powerpc/sysdev/xics/icp-native.c          |   12 +-
>  arch/powerpc/sysdev/xics/icp-opal.c            |    2 +-
>  arch/powerpc/sysdev/xics/xics-common.c         |    6 +-
>  arch/powerpc/sysdev/xive/Kconfig               |   11 +
>  arch/powerpc/sysdev/xive/Makefile              |    4 +
>  arch/powerpc/sysdev/xive/common.c              | 1302 ++++++++++++++++++++++++
>  arch/powerpc/sysdev/xive/native.c              |  639 ++++++++++++
>  arch/powerpc/sysdev/xive/xive-internal.h       |   62 ++
>  arch/powerpc/xmon/xmon.c                       |  152 ++-
>  36 files changed, 2799 insertions(+), 141 deletions(-)
>  create mode 100644 arch/powerpc/include/asm/xive-regs.h
>  create mode 100644 arch/powerpc/include/asm/xive.h
>  create mode 100644 arch/powerpc/sysdev/xive/Kconfig
>  create mode 100644 arch/powerpc/sysdev/xive/Makefile
>  create mode 100644 arch/powerpc/sysdev/xive/common.c
>  create mode 100644 arch/powerpc/sysdev/xive/native.c
>  create mode 100644 arch/powerpc/sysdev/xive/xive-internal.h
> 


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